DC
Donald Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Donald Campbell across the 1920, 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed), with identified parents Carl & Isabell — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Campbell |
| Given Name | Donald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Canfield Village |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Canfield Village |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Campbell | Son | — | 21 | ~1919 |
| Isabelle Campbell | Spouse | — | 55 | ~1885 |
| James Campbell | Son | — | 20 | ~1920 |
| Carl Campbell | Head | — | 56 | ~1884 |
Census Appearances
1920
Mahoning, Ohio
Son, age 1
Mahoning, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Mahoning, Ohio
Son, age 11
Mahoning, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Son, age 21
Mahoning-County, Ohio · implied b. ~1919 — 4 household members
| Surname | Campbell |
| Given Name | Donald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Canfield Village |
| 1935 Residence (County) | Mahoning |
| Class of Worker | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Donald Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Campbell (~0.92 confidence) and mother Isabell Campbell (~0.92 confidence) and mother Isabelle Campbell (~0.92 confidence) and father Dr Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Campbell
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Isabell Campbell
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Isabelle Campbell
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Dr Campbell
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Donald Campbell
Son · 1940 · age 21 · b. ~1919 · Ohio
★ You are viewing this record
Sibling
James Campbell
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03108-00512)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roy Mccartney | 58 | Head | Carpenter | Ohio |
| 2 | Annie O. Mccartney | 50 | Wife | — | Ohio |
| 3 | Ellis Mccartney | 24 | Son | Mutual Salesman | Ohio |
| 4 | Arliss Mccartney | 14 | Son | — | Ohio |
| 5 | Richard Mccartney | 12 | Son | — | Ohio |
| 6 | Joyce Mccartney | 9 | Daughter | — | Ohio |
| 7 | William Schlegel | 28 | Son in law | Laborer | W. Virginia |
| 8 | Evelyn Schlegel | 27 | Daughter | — | Ohio |
| 9 | William Schlegel | 7 | Grandson | — | Ohio |
| 10 | Kay Schlegel | 1 | Granddaughter | — | Ohio |
| 11 | Arthur Jr. Hult | 22 | Head | Crane Hooker | Ohio |
| 12 | Lucille O. Hult | 22 | Wife | — | Ohio |
| 13 | Karen L. Hult | 1 | Daughter | — | Ohio |
| 14 | Jesse R. Williams | 57 | Head | Mortician | Ohio |
| 15 | Elma Williams | 52 | Wife | — | Ohio |
| 16 | William Williams | 17 | Son | — | Ohio |
| 17 | David Williams | 29 | Son | Mortician | Ohio |
| 18 | Virginia Williams | 27 | Daughter in law | Clerk | Pennsylvania |
| 19 | Dora Paulin | 18 | Maid | House Maid | Ohio |
| 20 | George A. Gibson | 68 | Head | Methodist Minister | Ohio |
| 21 | Glen G. Gaston | 60 | Lodger | — | Pennsylvania |
| 22 | Martha R. Gaston | 57 | Lodger | — | Pennsylvania |
| 23 | Samuel J. Mcminn | 57 | Head | Electrician | Pennsylvania |
| 24 | Nettie D. Mcminn | 44 | Wife | Clerk | Ohio |
| 25 | Carl H. Campbell | 56 | Head | Physician | Ohio |
| 26 | Isabelle Campbell | 55 | Wife | — | Ohio |
| 27 | Donald A. Campbell THIS PERSON | 21 | Son | — | Ohio |
| 28 | James E. Campbell | 20 | Son | — | Ohio |
| 29 | Edward C. Bedico | 33 | Head | Shoe Salesman | New York |
| 30 | Ann L. Bedico | 31 | Wife | — | Virginia |
| 31 | Edwina Ann Bedico | 6 | Daughter | — | Ohio |
| 32 | John A. Walters | 48 | Head | Laborer W.P.A. | Pennsylvania |
| 33 | Alice Walters | 44 | Wife | — | England |
| 34 | Marie Walters | 18 | Daughter | None Worker. | Ohio |
| 35 | Alberta Walters | 17 | Daughter | None | Ohio |
| 36 | John D. Stoner | 57 | Head | Carpenter | Pennsylvania |
| 37 | Mary E. Stoner | 49 | Wife | — | Pennsylvania |
| 38 | Walter Stoner | 24 | Son | Truck Driver | Ohio |
| 39 | Jack J. Stoner | 20 | Son | Gas Station Attendant | Pennsylvania |
| 40 | Betty Stoner | 14 | Daughter | — | Ohio |
Pedigree Summary
Donald + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)